Ensure Cassandra OpsCenter agent (TCP:61621) is not exposed to more than 32 private hosts for Google Compute Firewall

Cassandra OpsCenter agent (TCP:61621) is exposed to more than 32 private hosts for Google Compute Firewall. Exposed ports may allow attackers to access the application listening on that port.

In GCP Console -

1. Sign in to the Google Cloud Console.
2. Open the Firewall page.
3. Select the firewall rule you want to modify.
4. Select Edit.
5. Modify any of the components to meet the necessary specifications.
6. Use a semicolon-delimited list to specify multiple protocols and protocol-and-destination-port combinations.
7. Save.